PERL scripts in Mozilla Browser

i've given the permissions to my PERL scripts.I can run my PERL scripts on Mozilla browser but in unable to run my HTML pages... Why i donno.Evn ive saved the HTML scripts in the same folder..... /var/www/cgi-bin
and the path is http://localhost:80/cgi-bin/login.pl is working well
but http://localhost:80/cgi-bin/login.html is not working.
I'm gettting the following error message.....

Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, root@localhost and inform them of the time the error occurred, and anything you might have done that may have caused the error.
More information about this error may be available in the server error log.
Apache/2.0.46 (Red Hat) Server at 127.0.0.1 Port 80

Im thankful to you as you are responding to me quickly and giving me the best suggestions............Please help me out from this problem............I've placed the html files in /var/www/html and the perl files in /var/www/cgi-bin...........I'm accessing my perl files using the following address in Mozilla browserhttp://localhost:80/cgi-bin/login.pl
but i just cant access the html pages..... can you please give me an idea how to access them? ill paste the code of both perl and html here.